The use of a mass spectrometer as the detector in gas chromatography was developed during the 1950s by Roland Gohlke and Fred McLafferty. Use the form below to delete this Stator And Rotor By ZureksJPG Wikipedia The Free Encyclopedia image from our index.
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If this document is dynamic and can be syndicated or aggregated, include the link to the RSS file. The instrument at the left is used for instructional and research and is located in room 190A. These sensitive devices were bulky, fragile, and originally limited to laboratory settings.
The GC effluent is directed into the mass spectrometer, where a spectrum of each component is obtained as it elutes from the column.


The development of affordable and miniaturized computers has helped in the simplification of the use of this instrument, as well as allowed great improvements in the amount of time it takes to analyze a sample. The GC works on the principle that a mixture will separate into individual substances when heated.
In 1996 the top-of-the-line high-speed GC-MS units completed analysis in 90 seconds, whereas first-generation GC-MS would have required at 15 minutes. A selected ion chromatogram of mass 91 will show the chromatographic peaks attributable to aromatic compounds.



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